Extending finite element analysis to include multidomain system simulation 6 dcdc converter figure 4a shows the simplorer schematic of a flyback dcdc converter. Electromagnetic finite element analysis electrodynamics. Based on the theory of electromagnetic field and electromagnet design, the distribution of magnetic field and the electromagnetic force of electromagnetic mechanism are. Introduction to finite element analysis fea or finite. A method for joining discontinuous a fields at the interface between conductors in sliding electrical contact has been implemented in the mega software package for 2 and 3d electromagnetic field analysis.
Electromagnetic finite element analysis solenoid systems. Engineers working in the rail industry will recognise the expanding use. Finite element analysis of stationary magnetic field. The authors examine phenomena such as nonlinearity, mechanical force, electrical circuit coupling, vibration, heat, and movement for applications in the. A new edition of the leading textbook on the finite element method, incorporating major advancements and further applications in the field of electromagnetics the finite element method fem is a powerful simulation technique used to solve boundaryvalue problems in a variety of engineering circumstances. Existing nodal finite element methods for electromagnetic problems either use some kind of a penalty or nonstandard interpolation functions. The finite element method in electromagnetics, 3rd edition. Based on the software analysis of electromagnetic field, the electromagnetic force of highspeed solenoid in common rail injector is calculated by finite element analysis and is compared with the. Not only is it critical in aerospace, but also in numerous other fields such as automotive, space, construction, civil structures, ground transportation, rail roads, aviation, marine, military, bio medical or mechanical, packaging, composites, electronics, and the list goes on. Cangellaris center for electronic packaging research, ece department university of arizona, tucson, az 85721, u. The leakage resistance and distributed capacitance of. The finite element method for electromagnetic modeling. Analysis of ui and uu type rail and actuator used in.
Computational electromagnetics cem, computational electrodynamics or electromagnetic modeling is the process of modeling the interaction of electromagnetic fields with physical objects and the environment it typically involves using computationally efficient approximations to maxwells equations and is used to calculate antenna performance, electromagnetic compatibility, radar cross. The finite element method in electromagnetics wiley. Electrical engineering and computer engineering major. In this paper, threedimensional finite element method. In order to accelerate the projectile between the conducting rails, it uses the. The beam element has segmentwise constant cross section and resists two bending moments in the principle axes of the cross section and torsional force in. The simulation of electromagnetic suspension system based. But it is found that the temperature is too high when the mechanism kept closing for a long time because of the coils high power. A robust finite element analysis of the railwheel rolling contact. Design of electromagnetic mechanism with finite element. The maturity of frequency domain and eigenmode calculations, and the growth of time domain applications is brie.
The problems are defined in terms of their variational formulation and can be easily implemented using freefem language. A new threedimensional finite element analysis model of. Ansys provides a modelbased embedded software development and simulation environment with a builtin automatic code generator to. Finite element method in assessing strength properties of a. Finite element method applied in electromagnetic ndte. The numerical technique harnessed here is the finite element method, which has been used to compute the eddy current losses in different magnetic structures. Especially in the offshore industry where environmental loads and vessel motion have to be considered together with functional loads, this tool is invaluable.
Finite element analysis of electromagnetic propagation in. A closing electromagnetic mechanism for rail transit directcurrent circuit breaker is designed. Software for structural design of electromagnetic rail gun our customer is an armament group that is engaged with development of rail gun to fire projectiles with high kinetic energy. Finite element and boundary element analysis of electromagnetic nde phenomena by shridhar nath a dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of doctor of philosophy department. The analysis produces the magnetic characteristics flux. Threedimensional beam finite elements are used to model the rails and sleepers of track structures as shown in fig. Ansys software can uniquely simulate electromagnetic performance across component, circuit and system design, and can evaluate temperature, vibration and other critical mechanical effects.
Finite element analysis of guided waves in pipe rail flaws. Electromagnetic levitation system using fem software. Electromagnetic simulation from ansys provides industry leading analysis tools that enable the accurate simulation of electromagnetic fields. Especially, we used the explicit finite element method, in which material. Among available modelling approaches, finite element analysis fea.
The finite element method fem, or finite element analysis fea, is a computational technique used to obtain approximate solutions of boundary value problems in engineering. Software for structural design of electromagnetic rail gun. The stationary magnetic field is established by nonmoving, permanently magnetized bodies and by nonmoving connecting wires crossed by direct current mocanu, 1981. A fellow of the ieee, he is listed by isi among the worlds most cited authors. Frequencydomain finite element methods for electromagnetic field simulation. Lisa can be used for static, thermal, vibration, dynamic response, fluid, buckling, dc current, electromagnetic and acoustic analysis. Simulation of electromagnetic launcher structure using finite element. Finite elements in analysis and design 7 1991 271277 271 elsevier finite element analysis of electromagnetic fields in the form of structural mechanics bruce e. Finite element analysis fea is a computerized method for predicting how a product reacts to realworld forces, vibration, heat, fluid flow, and other physical effects. This method is gaining grounds these days, with the advancement in the technological scenario, witnessed so far. Can anyone recommend a trustworthy finiteelement analysis software for mac os with electromagnetic and thermal coupling. The transient 3d solver in ansys maxwell is valuable for achieving the noise.
Finite element analysis fea is a computerised method for predicting how a product reacts to realworld forces, vibration, heat, fluid flow and other physical effects. Ansys electromagnetic solutions enable engineers and. This is to hold for any bounded, twodimensional, piecewise smooth submanifold. Ansys software is utilized with the purpose of simulating the system. Numerical simulation of dynamic large deformation and fracture. Eai utilizes infolytica magnet to model and simulate electric machines and electromagnetic devices. Dudley, series editor employed in a large number of commercial electromagnetic simulation packages, the finite element method is one of the most popular and wellestablished numerical techniques in. He authored theory and computation of electromagnetic fields wiley and electromagnetic analysis and design in magnetic resonance imaging, and coauthored computation of special functions wiley and finite element analysis of antennas and arrays wiley. Finite element analysis of guided waves in pipes and rails with flaws pdf 776kb member report 7812003 twi industrial member report summary 7812003 r m sanderson. The field is the domain of interest and most often represents a. Electromagnetic modeling by finite element methods crc. Finite element analysis of electromagnetic fields in the. Finite element modeling and static strength analysis on. This is a list of software packages that implement the finite element method for solving partial differential equations.
Chapter 5 is dedicated to the presentation of different macroscopic behavior laws of materials and their implementation in a finite element context. Finite element analysis on electromagnetic field of asynchronous traction motor used in turkish light rail vehicle yang yunfeng,li li csr zhuzhou electric locomotive co, ltd. A rail gun is an electrically powered launcher based on principles of electromagnetic forces to accelerate projectile. Mixed finite elements for electromagnetic analysis. Finite elements in computational electromagnetism 241. Learn more flux flux is a finite element software application used for electromagnetic and thermal physics simulations, both. Boundary value problems are also called field problems. Finite element analysis on electromagnetic field of. The study is made to explore a range of bore and rail geometry and look at their effect on key rail gun system parameters.
Finite element analysis fea services finite element analysis fea is a simulation program that can be used alongside traditional testing to analyze the strength of complex structures and systems, determine component behavior, and accurately predict how products will react under structural and thermal loads. Finite element analysis electromagnetic inference fea. Finite element analysis of electromagnetic field and. Since the popularity of modeling multiphysics applications has increased, and due to the fact that the finite element method is widely used for fluid flow and electromagnetics simulations, the term finite element analysis has also become more accepted in other engineering and science fields. In this work, finite element analysis software package, named maxwell electro magnetic field solver, is employed to calculate the rail gun parameters using 2d, a. Particular forms of the electromagnetic field theory laws for the stationary magnetic field. Finite element software for structural, fluid, heat transfer, electromagnetic, and multiphysics problems, including fluidstructure interaction and thermomechanical coupling. Finite element analysis software fea software autodesk. It allows the viewer to visualize stresses and displacements where products are placed under external loading. Modelling the electromagnetic performance of moving rail. Feko altair feko is an electromagnetic analysis software suite allowing users to solve a range of electromagnetic problems in realistic operating environments. A formulation based on potentials works well for convex domains, even in the presence of inhomogeneities, but fails to predict singular eigenvalues in the case of nonconvex domains besides predicting some. These are just a small taste of how fea, emag and software certification tools are increasingly being used by engineers and designers across the rail industry.
Tao wen and tuo chen national key laboratory of antennas and microwave technology, xidian university, xian, china. The finite element analysis fea solves static, frequency domain, and time varying electromagnetic fields. Finite element analysis fea software comsol multiphysics. Contact leap today if you have specific requirements that youd like to discuss, or visit us at ausrail 2017 in brisbane from nov 2123 click here to arrange a meeting with our. Unlike any other source in the field, this valuable reference clearly examines key aspects of the finite element method fem for electromagnetic analysis of lowfrequency electrical devices. Fundamentals, state of the art, and applications to emiemc analysis andreas c. The electromagnetic railgun technology utilizes a high electric current of several. A finite element technique for modelling 3d transient eddy currents in smooth rotor conductors moving at constant velocity is described. Lisa is a free finite element analysis software package limited to 0 nodes. Fea is a part of eais design process and supports tuning of a final design. The finite element method in electromagnetics jobs. Fem analysis utilizing ansys software has done to find out the flux pattern, working. The detailed transformer design was created through pexprt, which uses maxwell in the background. Which is an acronym of current distribution, electromagnetic fields, grounding and soil structure analysis, which has many engineering modules in its suite, each dedicated to a specific task.
Pdf a robust finite element analysis of the railwheel rolling. Ansys maxwell is a premier lowfrequency electromagnetic field simulation solution. Finite element analysis course stress analysis fea. A method for joining discontinuous a fields at the interface between conductors in sliding electrical contacts has been implemented in the mega software package for 2d and 3d electromagnetic field analysis. Finite element analysis shows whether a product will break, wear out or work the way it was designed. Apply to engineer, research scientist, mechanical designer and more. There are several commercial electromagnetic fea software brands on the. The model is simulated by the finite element method using ansys commercial software.
Fundamental magnetic field relationships result by customizing the general laws and material laws of the electromagnetic field in. A finiteelement technique for modeling 3d transient eddy currents in smooth rotor conductors moving at constant velocity is described. No matter what the application field is, the processes involved in finite element analysis are the same. Bim software for fem structural analysis, including international design eurocodes.
List of finite element software packages wikipedia. Finite element calculation of leakage resistance and. For the mathematical calculation we use the computermodelling software called cdegs. A new approach for modeling electromagnetic railguns. Fea does this through finite element mathematical analysis. It has been widely used for analysis of electromagnetic fields in antennas, radar. Lisafreeaffordable finite element analysis software. Freefem is a free and opensource parallel fea software for multiphysics simulations. Finite element analysis shows whether a product will break, wear out, or work the way it was designed. Finite element analysis fea is used in many industrial applications. A new approach for modeling electromagnetic railguns ieee. Advances in 3d electromagnetic finite element modeling.
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